Change imp to importlib: old way is not working anymore

[The-city-not-present]

It seems having "imp" is still working in python 3.10 but not 3.12+
The solution is looking simple, we should change "imp" to "importlib", but in fact more changes are necessary.
one thing, in globals().update() we should add , __spec__=... (I believe __spec__=None). Also, this is not enough, module import is no longer working. It seems InlinerImporter.find_module() should be changed to something, maybe InlinerImporter.find_spec(). It needs diving deeper into it. The current config is not working with moduleimporter.

[The-city-not-present]

Here is a fix: The-city-not-present@ac5cccf

It has some unnecessary code for debugging - "verbose" mode is too detailed. But if you don't have --verbose flag on, this code does not bother you. The important additions are find_spec in InlinerImporter in importer.template and returning spec (which is importlib.machinery.ModuleSpec(def_package,importer)) in prepare_package() in the postfix part of that importer.template.

These changes make the loader compatible with importlib and it is now working in python 3.12/3.13.